alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dyre C2)"; flow:established,from_server; content:"|55 04 07|"; content:"|05|miami"; distance:1; within:6; content:"|55 04 03|"; distance:0; content:"|0c|94.23.236.54"; distance:1; within:13; tls.fingerprint:"b2:ca:f5:a1:82:79:c1:cb:10:da:17:4c:58:1a:71:38:ff:8b:0c:f2"; reference:url,sslbl.abuse.ch; classtype:domain-c2; sid:2018940; rev:5; metadata:attack_target Client_and_Server, created_at 2014_08_14, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2022_01_15, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities;)